Pathfinder 1E Please give me your advice on my Dex build.

[SSuser]

Human

STR-8
DEX-20
CON-14
INT-14
WIS-9
CHA-7

Traits
Berserker of the Society
Carefully Hidden

1)Urban Barbarian, Combat Expertise, Improved Disarm - BAB1 F2R0W0
2)Rogue Unchained - BAB1 F2R2W0
3)Rogue Unchained, Iron Will, (Combat Trick-Quick Draw) - BAB2 F2R3W0
4)Rogue Unchained, +1 Dex - BAB3 F3R3W1
5)Kensai, Exotic Weapon Proficiency (Dueling Sword), Weapon Focus, Dueling Mastery - BAB3 F5R3W3
6)Free Hand Fighter, Combat Reflexes - BAB4 F7R3W3
7)Free Hand Fighter, Dodge, Mobility - BAB5 F8R3W3
8)Rogue Unchained, (need Rogue Talent) +1 Dex - BAB6 F8R4W3
9)Duelist, Greater Disarm - BAB7 F8R5W3
10)Rogue Unchained - BAB7 F8R5W3
11)Duelist, Spring Attack - BAB8 F9R6W4
12)Free Hand Fighter, (need Feat) +1Wis - BAB9 F9R7W5
13)??